add verbose PIO A mapping comment

git-svn-id: https://svn.openpcd.org:2342/trunk@143 6dc7ffe9-61d6-0310-9af1-9938baff3ed1

1 files changed, 50 insertions, 0 deletions

diff --git a/openpcd/firmware/src/openpcd.h b/openpcd/firmware/src/openpcd.h
index aa47fa4..a368996 100644
--- a/openpcd/firmware/src/openpcd.h
+++ b/openpcd/firmware/src/openpcd.h
@@ -17,6 +17,56 @@
 
 #define OPENPCD_IRQ_RC632	AT91C_ID_IRQ1
 
+/* PIO A mapping for OpenPCD v0.2
+ *
+ * PA0	TIOA0	B	O	CARRIER_DIV_HELP
+ * PA1	TIOB1	B	O	CARRIER_DIV
+ * PA2	PA2	P	I	N/C
+ * PA3	TWD	A	I/O	I2C
+ *
+ * PA4	TWCK	A	O	I2C
+ * PA5	PA5	P	O	RFID_RESET
+ * PA6	PA6	P	I	N/C
+ * PA7	PA7	P	I	N/C
+ *
+ * PA8	PA8	P	I	N/C
+ * PA9	DRXD	A	I	Debug
+ * PA10	DTXD	A	O	Debug
+ * PA11	NPCS0	A	O	SPI Slave Select
+ *
+ * PA12	MISO	A	I	SPi Master In
+ * PA13	MOSI	A	O	SPI Maste Out
+ * PA14	SPCK	A	O	SPI Clock
+ * PA15		P	I	N/C
+ *
+ * PA16	PA16	P	O	UDP_PUP
+ * PA17	TD	A	O	MFIN	*
+ * PA18	RD	A	I	MFOUT
+ * PA19	RK	A	I	CARRIER_DIV
+ *
+ * PA20	PA20	P	I	AB_DETECT
+ * PA21	PA21	P	I	N/C
+ * PA22	PA22	P	I	UDP_PUP
+ * PA23	PWM0	B	O	MFIN 	*
+ *
+ * PA24		P	I	N/C
+ * PA25	PA25	P	O	LED1
+ * PA26	PA26	P	O	LED2
+ * PA27	PA27	P	I	BOOTLDR_SW
+ *
+ * PA28	TCLK1	B	I	PIO_CARRIER
+ * PA29	TCLK2	B	I	CARRIER_DIV_HELP
+ * PA30	IRQ1	A	I	RC632_IRQ
+ * PA31	PA31	P	O	TRIGGER
+ *
+ * => PIO_PSR = 0x8f7181e4 (= PIO_PER)
+ * => PIO_OSR = 0x86010020 (= PIO_OER)
+ * => PIO_ASR = 0x400e7e18 
+ * => PIO_BSR = 0x30800003
+ *
+ * * MFIN connected to both SSC and PWM output !!!
+ */
+
 #define OPENPCD_PIO_CDIV_HELP_OUT	AT91C_PA0_TIOA0
 #define OPENPCD_PIO_CDIV_HELP_IN	AT91C_PA29_TCLK2
 #define OPENPCD_PIO_MFIN_PWM		AT91C_PA23_PWM0